Steam vacuum-pump.



No.' 663,o4|.

E. B.RAYNER. STEAM vAcUuM PUMP.

(Application med Jan. 29.11900.)

Patented Dec. 4, 1900.

NiTED STATES PATENT OFFICE.

EDWIN B. RAYNER, OF PIQUA, OHIO, ASSIGNOR TO AUGUSTUS G. KERNS, OF SAMEPLACE.

STEAM vAoUUM-PUM P;

SPECIFICATION forming part of Letters Patent No. 663,041, dated December4. 1900. Application filed .January 29. 1900. Serial No. 3,246. (Nomodel.)

To all whom it may concern:

Be it known that I, EDWIN B. RAYNER, a citizen of the UnitedSta,tes,residing at Piqua, in the county of Miamiand State of Ohio, haveinventedcertain new and useful Im-v provelnents in Steam Vacuum-Pumps;and I do hereby declare the following to bea full, clear, and exactdescription of the invention, suc/h as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to apparatus for4 raising water or other liquidswhere it is desirable and most. profitable to take advan-4 tage of highand low pressures of steam in the same machine. f

An essential feature of the invention is the provision of a steamvacuum-pump that will operate successfully with steam at a comparativelylow pressure, utilize the motive agent to the best possible advantage,and be entirely automatic, positive, and certain in action.

With these and such other ends in view as appertain to the nature of theinvention and for a full disclosure thereof and also to acquire aknowledge of the details of construction of the means for elfecting theresult reference is to be had to the following description and thedrawing hereto attached.V While the essential and characteristicfeatures of the invention are Vnecessarily susceptible of modification,still the preferred embodiment of the invention is illustrated in theaccompanying drawing, which is a vertical central section of a pump ofthe charac.

ter aforesaid for attaining the objects of the invention.

The drum or casing 1 is preferably of circular outline in transversesection, and may be of any length and diameter, and is provided at itsupper end with a head 2 and at its lower end with a head 3, to which isattached a bowl d or like device, by means of which the pump is adaptedto be connected to the suction-pipe dipping into the water or liquid tobe elevated. The` lower head 3`is provided at a central point with atubular guide 5 and with a series of openings 6, 'controlled by means ofupwardly-opening valves 7. An annular wall 8 is attached at its lowerend to the head 3, and is spaced from the drum or casing 1, andterminates at its upper end about midway of the distance between theheads 2 and 3, the upper end portion being inwardly defiected, so as notto be engaged by the lower end of the wall 9, pend- 'ent from the pistonl0, located in the casing and adapted to reciprocate vertically therein.An annular flange 11 is provided on the top side of the head 3, and thelower ends of the -walls 1 and 8 are attached to opposite sides thereof.

AA relief-valve 12 is applied to the head 2 i and affords an escape forthe air contained in the casing when starting or priming the pump. Avalve-casing 13 is located centrally of the head 2, and isincommunication with the casing, and is provided with a lateralextension 14, to which the steam-generator or other source of suppl-y ofmotive agent is connected, and this casing is formed with a valve-seatl5 and a cylinder extension 16 in line therewith. The operating-rod 17is located centrally of the casing and passes axially through thevalve-'casing 13 and is provided at its upper end with a piston 18 tooperate in the cylinder 16 and with a valve 19.to perch upon the seat15. The piston 18 and valve 19 are spaced apart, andthe latter is ofgreater superficial area than the former, so as to be held seated by thedirect pressure of the steam thereon when closed. A lever 20 isfulcrumed to the upper end of an arm 21, pivotally connected at itslower end to the valve-casing 13 and has its inner end attached to theupper end of the rod 17 and its outer end provided with a Weight 22, thelatter serving as a counterbalance for the rod 17 and the parts attachedthereto.

A stop 23 is secured to the upper portion of the rod 17, and acorresponding stop 24 is attached to the lower end portion thereof.

vThe piston 10 is arranged for operation be- IOC space 25 is adapted tobe filled with a suitable liquid, as oil, to provide a liquid seal forthe lower end of the space or cham ber inclosed by the wall 9, so as toprevent contact of the steam with the water in the lower portion of thecasing when the steam is exerting a positive pressure upon the uppersurface of the piston. The central opening 26 of the piston ares at itslower end and is closed at its upper end by means of a puppet-valve 27,whose stem 281s provided withastop 29, whichlimits the vertical movementof the valve when unseated.

.lhe outlet 30 for the water or other liquid is provided at the lowerend of the casing and is in communication with a box or analogous device31, attached to the side of the casing and closed by means of anupwardly or outwardly opening valve 32. In this connection it is to beunderstood that the discharge-pipe is to be connected with the part 31and is adapted to convey the water to the surface or other convenientpoint of discharge.

`When in position the pump will have its lower end attached to thesuction-pipe and the part 3l to the discharge-pipe. Upon pressingdownward upon the outer end of the lever 20 the valve 19 will beunseated, and the steam from the 'source of supply will rush into theupper portion of the casing through the opening in the lower part of thevalvecasing 13, and the steam exerting a downward pressure upon thepiston 10 will cause it to descend, and at a predetermined point in itsdownward travel the stem 28 will engage With the stop 24 and move therodA 17 downward, seat the valve 19, and cut oit' the supply of steam.At or about the instant the supply of steam is cut oft the valve 27 isunseated and the steam above the piston 1 0 will pass through theopening 26 and into the lower portisn of the casing, when condensationwill take place and produce a vacuum within the cylinnerwhich will causethe valve 7 to open upwardly and the water or liquid to enter thecasing, and this water coming in contact with the steam will effect acondensation ofevery particle and,rising inthe casing, will cause thepiston 10 to move upward until brought into contact with theI stop 23,when the valve 19 will vbe automatically unseated and the steam againenter the upper portion of the casing and effect a repetition of theoperation just described. In the second and subsequent descendingmovements of the piston 10 the water contained in the casing will beforcibly expelled through the outlet 30 and by the valve 32, the latterclosing the instant the descent of the piston is ing the pump in orderto relieve the casing of the air contained therein, and when they pumpis primed or started the said valve 12 is closed and remains shut. Afterbeing started the operation of the pump is entirely automatic, thedirect pressure of the steam causing the piston to descend and the Athemanner specied. checked. The valve 12 is opened when startvacuumproduced bythe condensation of the steam causing the Water to flowthrough the valve-controlled openings 6 into the casing and buoying thepiston upward as it rises. When the valve 19 is unseated, it is heldopen by the pressure of the steam until closed by the contact of thestein 28 with the stop 24 and remains closed during the tilling of thecasing and the ascent of the piston.

To prevent the escape of steam from the upper portion of the casingabove the piston to the lower portion of the casing below the pistonthrough the valve-stem 28, the lower end of said stem is preferablypartitioned to form the wall of a stuffing-box 28a, in which areinserted packing 28b and a gland or hollow nut 28, cooperating in theusual manner to form a steam-tight joint between the tube and rod 17.Any other suitable seal or titting of this character may, however, beemployed.

I-Iaving thus described the invention, what is claimed as new is- 1. Ina steam vacuum-pump, and in combination, with the casing, provided withthe -valve-controlled inlet and outlet openings,

and a piston mounted for reciprocation within the said casing,avalve-casing having a steaminlet and a valve-seat and cylinder uponopposite sides of the said steam-inlet, a rod provided with stops to bealternately engaged by means of the piston, a valve and a piston securedto the said rod and adapted to coperate with the seat and cylinder ofthe aforesaid valve-casing, said valve being of greater superficial areathan the piston connected therewith, substantially as and for thepurpose specified.

2. In a steam vacuum-pump, acasing provided at its lower end withvalve-controlled inlet and outlet openings, and having a guide appliedto its lower head, a valve-casing applied to the upper head and formedwith a steam-inlet, a valve-seat and a cylinder, a rod passing throughthe casing and having its lower end coperating with the guide applied tothe lower head thereof, a valve and a piston secured tov the upper endof said rod and coperating with, respectively, the valveseat andcylinder of the aforesaid valve-easing, upper and lower stops secured tosaid rod, a piston mounted for reciprocation within the casing andhaving a centrally-disposed opening, and a puppet-valve for controllingthe opening in the piston and having its stem provided with a stop, thesupply of the steam being automatically admitted and shut off by theaction of the piston., substantially in 3. In a steam vacuum-pump, a`casing pro- .vided with valve-controlled inlet and outlet openings, andhaving a valve controlled fsteam-inlet, a piston mounted forreciprocation within the casing and having a pendent wall to enter anannular space provided at `the lower end of the casingand containing asealing liquid, said piston controlling the ad- IOO IIO

IZO

inission of the steam and provided with a valve-controlled opening,substantially as set forth.

, elevated, and provided at its upper end with a valve-controlledinlet-opening for the motive agent, an inner Wall secured to the lowerportion of the casing and spaced therefrom; said space being adapted toreceive a sealing liquid, an annular piston mounted for reciprooationwithin the casing and having a pend'- ent wall extending into the spaceformed between the inner and outer walls of the casing, said pistonbeing adapted to alternately open and close the valve regulating theadmission of the steam, and a valve applied to the piston forcontrolling the opening thereof, substantially as set forth.

5. The herein described 'steam vacuumpump, comprising a casing, havingan annular space at its lower end and provided with valve-controlledinlet and outlet openings, a valve-casing applied to the upper head ofthe casing, vand formed with an inlet-opening, a valve-seat and acylinder, a counterbalanced rod passing through the casing andcoperating with a lower guide thereof, and having upper and lower stops,a piston and a valve secured to the upper portion of said rod andcoperating with the valve-seat and cylinder of the said valve-oasing, anannular piston' mounted for reciprocation within the casing, and havinga pendent wall extending into the aforesaid annular space of the casing,and a puppet-valve applied to said piston, substantially as set forth.

In testimony whereof I aiX my signature in presence of two witnesses.

EDWIN B. RAYNER.' [L 8.] Witnesses:

D. R. HOSTERMAN, J oHN C. BAssET'r, J r.

